Sn0wbreeze 3.1.3 is updated again to v1.5 with added support for iPod touch 2G older non-MC models. Sn0wbreeze is a jailbreaking tool which works on Windows. You can use Sn0wbreeze 3.1.3 V1.5 to create custom .ipsw files and update your firmware without upgrading the baseband of your iPhone.

You can use Sn0wbreeze 3.1.3 v1.5 to Jailbreak iPhone 3GS (old bootrom, non-MC), iPhone 3G, iPhone 2G, iPod Touch 2G (old bootrom, non-MC) and iPod Touch 1G. If you have a Mac then you can use the PwnageTool 3.1.5 to jailbreak iPhone 2G, 3G, 3GS (older bootrom with baseband 04.26.08). Many 3GS users complained that the Sn0wbreeze send the iPhone into an infinite loop after first reboot, so be away from it.